JP7357666B2 - Radio interference monitoring device and radio interference monitoring method - Google Patents

Description

The present invention relates to a radio interference monitoring device and a radio interference monitoring method that visualize and monitor the directions of arrival of a plurality of radio signals of the same frequency band and the state of mutual radio interference at each location in space.

The practical application of the next-generation communication standard 5G has begun, and in order to meet the wide variety of 5G needs, local 5G, which can be flexibly constructed and used by various entities such as local governments and local companies, is being considered. .

Under these circumstances, in order to cope with the further rapid increase in mobile traffic, the application of in-band full-duplex communication (hereinafter referred to as IBFD), which is a highly efficient frequency utilization technology, is being considered.

Ideally, IBFD can double the frequency usage efficiency compared to existing duplex systems, but there is a problem that a lot of new interference will occur, and it will be necessary to obtain various amounts of interference and Therefore, a control technology is required to determine whether or not IBFD is applicable. In order to achieve this, it is necessary to grasp the wireless status of, for example, 5G wireless terminals or other terminals of various standards in space and time, and measure the interference status of radio waves emitted into space from multiple terminals at high speed and with high precision. Monitoring technology is needed, and as part of that, a system is needed to estimate the direction of arrival of electromagnetic waves at any given point.

Conventional systems that estimate the direction of arrival of electromagnetic waves include, for example, systems that estimate the direction of arrival of electromagnetic waves based on received signals at the same position of multiple antennas that receive three orthogonal polarization signals (for example, Patent Document 1st class) etc. are known.

JP2021-96191A

In the radio wave arrival direction estimation system described in Patent Document 1, for example, three antennas are sequentially moved to the same measurement position, and the electric field strength is determined at the stage when each received signal is sequentially acquired. Based on the electric field strength, the direction of arrival of the radio waves is estimated by applying a search method such as the beamformer method or the MUSIC method.

This conventional radio wave direction of arrival estimation system separates signals from multiple signal sources from the received signal at the measurement position, determines the direction of arrival for each signal from each separated signal source, and determines various directions other than the direction of arrival. There is no specification regarding the determination of characteristics, such as electric field strength, swept spectrum, etc., and in order to understand the state of radio wave interference in space, the direction of arrival and other characteristics determined must be separated according to the measurement position. There is also nothing disclosed about visualizing and displaying each radio signal (signal source).

For this reason, conventional radio wave arrival direction estimation systems grasp the radio conditions of terminals of the various standards mentioned above in a certain area of space, and calculate the interference situation of radio waves emitted into space from multiple terminals, for example. Interference monitoring technology that measures the direction of arrival of each signal source and other characteristics at high speed and with high precision cannot be realized, and it is difficult to monitor complex wireless communication environments that are useful for accurately determining whether or not IBFD can be applied. It was extremely difficult to do so.

On the other hand, in recent years, interference monitoring technology has been desired in an environment where a plurality of wireless stations transmit and receive wireless signals, for example, in the same frequency band. In particular, in the above environment, each radio station is used as a signal source, and a plurality of radio signals (same frequency) that come and propagate in a mixed manner from the signal source are separated, and the arrival direction and direction of each radio signal at various points in the environment are determined. There is a strong need for a function to display other characteristics in an easy-to-see manner. Furthermore, in today's wireless environment that is subject to interference monitoring, advances in communication technology have resulted in, for example, interference being installed on various devices (IoT devices) in order to connect them to the Internet of Things (IoT). There is an increasing need to take IoT connection wireless devices such as IoT wireless tags into consideration as the signal source.

Here, for example, in the process of acquiring the direction of arrival of the signal source and other characteristics from mixed wireless signals coming from and propagating from multiple signal sources such as wireless devices for IoT connection, conventionally, interference monitoring target There is a method in which a user manually moves an interference monitoring device over the entire area and receives radio signals one after another at various locations.

According to this method, it takes a lot of effort and time for the user to move the interference monitoring device and perform measurements one after another. It was not possible to monitor the radio wave interference situation until the acquisition of other characteristics was completed. Moreover, conventionally, there has been no effective method of knowing the location of a signal source (interference source) that causes interference, and it has been difficult to understand the state of radio wave interference in detail, including the location of the interference source.

The present invention has been made in order to solve such conventional problems, and the present invention is aimed at solving the problems of the prior art. Provides a radio wave interference monitoring device and a radio wave interference monitoring method that can monitor mutual interference, including the location of the interference source, without requiring the trouble of moving and measuring, even though it is based on the measurement of mutual interference via multiple points. The purpose is to

In order to solve the above problems, a radio wave interference monitoring device according to claim 1 of the present invention provides a radio wave interference monitoring device that uses radio waves within a predetermined space (6) in which a plurality of signal sources (110) transmit and receive radio signals in the same frequency band. A radio wave interference monitoring device that displays interference information, comprising a receiving device (20) having a traveling mechanism section (8), an imaging section (9), and a receiving section (10), and a remote control section that remotely controls the receiving device. (43a); and a data control unit (43b) that receives a radio signal received by the receiving unit by the remote control and image data captured by the imaging unit and processes the data. a processing device (40), the data processing device driving and controlling the traveling mechanism unit and directing the receiving device to a plurality of measurement points in the predetermined space or to an arbitrary point. a travel control unit (54) that causes the vehicle to travel automatically; a reception control unit (52) that causes the reception unit to receive the radio signal at each of the measurement points; and an imaging control unit (53) that causes the imaging unit to capture an image; the remote control unit having a remote control unit; and the reception unit receives mixed radio signals transmitted from the plurality of signal sources at each of the measurement points from the reception device, and from the received radio signals, the A signal separation process is performed to separate the signal transmitted from one of the plurality of signal sources, and the electric field strength, direction of arrival estimation, constellation, and swept spectrum of the signal transmitted from each of the plurality of signal sources after the signal separation is performed. an analysis processing unit (42) that performs analysis processing for each analysis item; and an analysis processing unit (42) that receives imaging data from the imaging unit from the receiving device, and calculates the signal based on a pre-registered image from the received imaging data. an object recognition unit (59) that image-recognizes an object as a source; and a direction and distance transmitted from the reception device when the reception device automatically travels to the position of the object image-recognized by the object recognition unit. a position estimation unit (60) for estimating the location of the signal source as an interference source in the predetermined space based on data of the data control unit; 71) and a monitor screen (70) on which an interference source location mark (75) indicating that the interference source is located at a location corresponding to the estimated location of the interference source in the map area is displayed. a display section (46) for displaying a display; and a display control section (46) for displaying an analysis result for each of the analysis items in the analysis processing section as the radio wave interference information on the display section in response to a predetermined operation in the map area. 61).

With this configuration, the radio wave interference monitoring device according to claim 1 of the present invention performs remote control from the data processing device, and while the receiving device automatically travels through a plurality of measurement points, The signal transmitted from one of the multiple signal sources is separated from the mixed radio signals received by the system, and the analysis processing for each analysis item is performed on the signal transmitted from each of the multiple signal sources. This makes it possible to significantly reduce the time and effort required for the user to travel and perform measurements, even though measurements are performed via multiple measurement points. In addition, if an object as a signal source is image-recognized based on pre-registered images from image data captured by the imaging unit, the receiving device automatically travels to the position where the object is located, and then the signal source is The location of the interference source is estimated, and an interference source location mark is displayed in the map area of the monitor screen that corresponds to the estimated location of the interference source, so radio wave interference including the location of the interference source is detected. This allows for smooth monitoring of the status.

Further, in the radio interference monitoring device according to claim 2 of the present invention, an external image of an IoT radio section (105) is registered as the image, and the object recognition section recognizes the IoT radio section as the object. It may be a configuration.

With this configuration, the radio wave interference monitoring device according to claim 2 of the present invention can easily confirm the location of the IoT radio unit, which is the signal source, as an interference source using the interference source location mark displayed in the map area. Radio wave interference monitoring can be performed with an eye to the placement and operational status of the IoT radio unit.

Furthermore, in the radio wave interference monitoring device according to claim 3 of the present invention, the imaging section may be a 360-degree camera device. With this configuration, the radio wave interference monitoring device according to claim 3 of the present invention can recognize an object as an interference source (signal source) from the imaging data in a 360-degree range in the imaging unit, and mark the location of the interference source. Thus, it is possible to reduce omission of marking of the location of the interference source.

Further, the radio wave interference monitoring device according to claim 4 of the present invention further includes a schedule management unit (55) that manages a movement schedule including a movement route of the receiving device and a measurement schedule including measurement intervals, and The unit may execute the automatic traveling according to the movement schedule, and the reception control unit may execute an operation of receiving the radio signal at the reception unit according to the measurement schedule.

With this configuration, the radio wave interference monitoring device according to claim 4 of the present invention can easily manage the measurement schedule and movement schedule, and can also easily perform measurement and movement control of the receiving device according to the measurement schedule and movement schedule. It becomes possible.

Further, in the radio wave interference monitoring device according to claim 5 of the present invention, the data processing device has position information at the measurement point within the predetermined space recorded in advance, and the analysis processing unit at the measurement point. Based on the database (44) that stores the analysis results of each analysis item performed in association with the position information, and the electric field intensity analysis results for points other than the measurement points, based on the analysis results of the electric field strength stored in the database, The display controller further includes a heat map generation unit (57) that generates a heat map corresponding to each of the plurality of signal sources by performing intensity interpolation processing, and the display control unit is configured to In addition to displaying the interference source location mark, the direction of arrival, which is the result of the direction of arrival estimation performed by the analysis processing unit corresponding to the arbitrary position, is displayed in response to an operation for specifying an arbitrary position in the map area. (73, 73a, 73b) are displayed on the display section for each of the plurality of signal sources, one of the direction of arrival diagrams displayed for each of the plurality of signal sources is selected, and the analysis item and the heat When one of the maps is selected, the analysis result for each of the analysis items corresponding to the desired arbitrary position and the generation result of the heat map may be further displayed on the display unit as the radio wave interference information.

With this configuration, the radio interference monitoring device according to claim 5 of the present invention defines a predetermined space when monitoring radio interference in a predetermined space in which a plurality of signal sources transmit and receive radio signals in the same frequency band. The location of the interference source can be determined by specifying any point on the monitor screen, which has a map area that corresponds to the location of the signal source as an interference source, and an interference source location mark is displayed at the location corresponding to the location of the signal source as an interference source. It is possible to selectively and easily check the radio wave interference information for each signal source corresponding to the specified arbitrary position while understanding the information. As radio wave interference information, various analysis items such as electric field strength, direction of arrival estimation, constellation, and swept spectrum can be confirmed. Further, according to the configuration having the function of performing the interpolation process, radio wave interference information (heat map) can be confirmed even at points other than the measurement point where the measurement was actually performed. This makes it possible to easily observe complex wireless communication environments that are difficult to implement using existing measuring instruments and measurement systems.

Further, in the radio wave interference monitoring device according to claim 6 of the present invention, the display control unit adjusts the display area of the heat map in response to expansion of a region including the measurement point where analysis of each analysis item has been completed. It may also be configured to update so as to expand gradually.

With this configuration, the radio wave interference monitoring device according to claim 6 of the present invention does not have to wait for the measurement at all the measurement points to be completed, but instead creates a heat map for the area where the measurement has been completed up to that point. You can check the status.

Furthermore, in the radio wave interference monitoring device according to claim 7 of the present invention, the data processing device further includes a setting means (51) for setting a frequency band to be monitored for radio wave interference, and the receiving unit of the receiving device , the receiving is performed on signals in the frequency band set by the setting means transmitted from each of the plurality of signal sources, and the analysis processing section is configured to receive signals from the setting means that are received by the receiving section of the receiving device. It may also be configured such that analysis processing for each of the analysis items is performed on signals in a frequency band set by.

With this configuration, the radio interference monitoring device according to claim 7 of the present invention can easily monitor the state of mutual interference of radio signals in the frequency band by setting a desired frequency band to be monitored for radio interference. It becomes possible.

Further, in the radio wave interference monitoring device according to claim 8 of the present invention, the setting means is configured to set one of a 3.7 GHz band, a 4.7 GHz band, and a 28 GHz band as the frequency band to be monitored for the radio wave interference. You can also use it as

With this configuration, the radio wave interference monitoring device according to claim 8 of the present invention selectively sets any one of the 3.7 GHz band, 4.7 GHz band, and 28 GHz band, and Mutual interference status of wireless signals can be monitored.

In order to solve the above problem, a radio wave interference monitoring method according to claim 9 of the present invention uses the radio wave interference monitoring device according to any one of claims 1 to 8, and a plurality of signal sources (110) are connected to the same A radio interference monitoring method for displaying radio interference information within a predetermined space (6) in which radio signals in a frequency band are transmitted and received, the method comprising: sending a movement instruction from the data processing device to the receiving device; S30), a travel control step (S22) in which the receiving device automatically travels a section from the current measurement point to the next measurement point each time the movement instruction is received; a reception control step (S23) for causing the imaging unit to take an image; and a reception control step (S23) for causing the imaging unit to take an image; receiving a mixed radio signal from the receiving device, performing signal separation processing to separate a signal transmitted from one of the plurality of signal sources from the received radio signal, and separating the signals from the plurality of signal sources. an analysis processing step (S32) for performing analysis processing on each analysis item of electric field strength, direction of arrival estimation, constellation, and sweep spectrum for signals transmitted from each of the signals; an object recognition step (S34) of image-recognizing the object as the signal source based on the image registered in advance from the received imaging data; a position estimation step of estimating the location of the signal source as an interference source in the predetermined space based on the azimuth and distance data sent from the receiver when the receiver automatically travels to the location; S39) and a map area (71) defining the predetermined space, and an interference source location indicating that the interference source is located at a location corresponding to the estimated location of the interference source in the map area. A monitor screen (70) on which a mark (75) is displayed is displayed on the display section (46), and the analysis results for each of the analysis items in the analysis processing step are displayed on the display unit (46). The present invention is characterized in that it includes a display control step (S43) of displaying radio wave interference information on the display unit.

With this configuration, the radio wave interference monitoring method according to claim 9 of the present invention performs remote control from the data processing device in the radio wave interference monitoring device to which the present radio wave interference monitoring method is applied, and the receiving device is routed through a plurality of measurement points. While driving automatically, the receiver separates the signal transmitted from one of the multiple signal sources from the mixed radio signals received at each measurement point, and separates the signal transmitted from each of the multiple signal sources. Since analysis processing is performed for each analysis item regarding the signal, it is possible to significantly reduce the time and effort required for the user to travel and perform measurements, even though measurements are performed via multiple measurement points. In addition, if an object as a signal source is image-recognized based on pre-registered images from image data captured by the imaging unit, the receiving device automatically travels to the position where the object is located, and then the signal source is The location of the interference source is estimated, and an interference source location mark is displayed in the map area of the monitor screen that corresponds to the estimated location of the interference source, so radio wave interference including the location of the interference source is detected. This allows for smooth monitoring of the status.

The present invention is based on the premise that mutual interference of wireless signals at various locations in space is measured via multiple points in a complex wireless communication environment where multiple signal sources transmit and receive wireless signals in the same frequency band. It is possible to provide a radio wave interference monitoring device and a radio wave interference monitoring method that can monitor the location of interference sources without requiring the trouble of moving and measuring.

FIG. 2 is a conceptual diagram for explaining the current wireless environment that is subject to radio interference monitoring. FIG. 2 is a conceptual diagram illustrating movement and measurement of a self-propelled receiving sensor section within a radio interference monitoring area of a radio interference monitoring device according to an embodiment of the present invention. 1 is a block diagram showing the overall configuration of a radio wave interference monitoring device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a detailed functional configuration of a data processing device in a radio wave interference monitoring device according to an embodiment of the present invention. FIG. 2 is a schematic diagram illustrating an automatic traveling route and a position estimation function of an interference source located at an arbitrary point of the mobile receiving sensor unit of the radio wave interference monitoring device according to an embodiment of the present invention. FIG. 3 is a diagram illustrating an operation control sequence between a self-propelled reception sensor unit and a data processing device related to radio interference information generation processing in the radio interference monitoring device according to an embodiment of the present invention. 2 is a flowchart showing a radio interference monitoring processing operation based on data collected by a self-propelled reception sensor unit of a radio interference monitoring device according to an embodiment of the present invention. 8 is a flowchart showing a display processing operation of radio wave interference information in step S43 of FIG. 7 in the radio wave interference monitoring device according to an embodiment of the present invention. FIG. 3 is a diagram illustrating a display example of a basic monitor screen including an interference source location mark used for monitoring a radio wave interference state in a radio wave interference monitoring device according to an embodiment of the present invention. FIG. 3 is a diagram showing an enlarged view of the direction of arrival map displayed in response to the operation of the basic monitor screen in the radio wave interference monitoring device according to an embodiment of the present invention; An example is shown, and (b) shows an example when the direction of arrival of the signal is 90 degrees. FIG. 6 is a diagram showing a display form of a sweep spectrum confirmation screen that can be transitioned from the basic monitor screen in the radio interference monitoring device according to an embodiment of the present invention. FIG. 6 is a diagram showing a display form of a heat map confirmation screen that can be transitioned from the basic monitor screen in the radio wave interference monitoring device according to an embodiment of the present invention. FIG. 6 is a diagram showing a display form of a constellation confirmation screen that can be transitioned from the basic monitor screen in the radio wave interference monitoring device according to an embodiment of the present invention. It is a figure which shows the transition of the heat map confirmation screen corresponding to the passage of time in the radio wave interference monitoring device based on the modification of this invention.

DESCRIPTION OF EMBODIMENTS Embodiments of a radio interference monitoring device and a radio interference monitoring method according to the present invention will be described below with reference to the drawings.

(overview)
First, an overview of a radio interference monitoring device and a radio interference monitoring method using the same according to the present invention will be explained with reference to FIGS. 1 and 2.

Among current interference monitoring techniques, for example, there is one that targets a wireless environment having the configuration shown in FIG. 1 as a monitoring target. In the wireless environment shown in FIG. 1, solid lines with arrows represent communication signals, and dotted lines with arrows represent wireless signals that cause interference conditions.

In FIG. 1, terminal A1 located within the wireless service area of base station A0 is in communication with a destination not shown via base station A0, and terminal B1 located within the wireless service area of base station B0. A wireless environment is assumed in which the user is in communication with a partner (not shown) via base station B0. Within the wireless service area of the base station A0, IoT wireless units C11, C12, and C13 for connecting each device (not shown) to the IoT are attached to each corresponding device. The IoT wireless units C11, C12, and C13 enable each of the devices described above to connect to the IoT, for example, by operation from the terminal A1. Similarly, within the wireless service area of base station A1, IoT wireless units C21, C22, and C23 are attached to other devices (not shown), respectively. The IoT wireless units C21, C22, and C23 realize the connection of each of the other devices to the IoT by, for example, an operation from the terminal B1. Examples of the IoT wireless units C11, C12, C13, C21, C22, and C23 include IoT wireless tags and various IoT connection wireless devices. In such a wireless environment, for example, IoT wireless units C11, C12, C13, C21, C22, and C23 are used as signal sources, and complex interference conditions occur at various locations between the signals transmitted from each signal source. Sometimes.

Regarding interference monitoring technology that targets a complex wireless communication environment as shown in Figure 1, conventional methods exist for receiving wireless signals and estimating the direction of arrival at multiple measurement points within a certain area. , the signal transmitted from one of the multiple signal sources mixed at each measurement point is separated, the direction of arrival is estimated, and the estimated direction of arrival can be observed (monitored) for each measurement point. It wasn't. In addition, with conventional interference monitoring technology, it is easy to check multiple analysis items such as the electric field strength and sweep spectrum of the signal transmitted from each signal source (e.g. IoT wireless unit) corresponding to each measurement point. No consideration was also given to the display of

On the other hand, as shown in FIG. 2, for example, the radio interference monitoring device 1 according to the present invention monitors the inside of a radio interference monitoring area 6 in which a plurality of signal sources 110 transmit and receive radio signals, and furthermore, as shown in FIG. Measurements are carried out at each measurement point while moving the self-propelled reception sensor section 20, which will be described in detail in Section 2, by remote control. The signal source 110 is assumed to be an IoT wireless unit (see FIG. 1) that transmits and receives wireless signals in the same frequency band. In FIG. 2, in the radio wave interference monitoring area 6, various IoT devices 100 such as a washer-extractor, a dryer, a large-sized dryer, a continuous washing machine, a folding machine, an automatic towel wrapping machine, etc. are arranged, and these An IoT wireless unit 105 is attached to each IoT device 100. The IoT radio unit 105 constitutes the signal source 110, and as described in FIG. 1, it can also become an interference source that causes complicated interference conditions at various locations. In the following description, the signal source 110 may also be referred to as an interference source.

In order to enable measurement while moving at various locations within the radio interference monitoring area 6 having the above-mentioned wireless environment, the radio interference monitoring device 1 according to the present invention has a traveling mechanism section (see FIG. 2). 3), an imaging section (see camera section 9), and a receiving section (see antenna device 10); While being communicably connected, each of the above-mentioned functional parts of the self-propelled reception sensor part 20 is remotely controlled by a remote control function, and the travel mechanism part is remotely controlled to automatically travel to pass each measurement point. It is configured with a data processing device 40 that receives (collects) received data at each measurement point obtained by remote control of the receiving section and imaged data obtained by remote control of the imaging section, and performs data processing. Ru.

In the radio interference monitoring device 1 according to the present invention, the self-propelled reception sensor section 20 remotely controls the traveling mechanism section within the radio interference monitoring area 6 where a plurality of signal sources 110 transmit and receive radio signals in the same frequency band. The device functions as a receiving device according to the present invention that receives mixed radio signals transmitted from a plurality of signal sources 110 at each measurement point in the radio interference monitoring area 6 while automatically traveling. In short, the radio interference monitoring device 1 according to the present invention uses a self-propelled receiving sensor that is automatically driven to receive mixed radio signals transmitted from a plurality of signal sources 110 at each measurement point in the space of the radio interference monitoring area 6. The self-propelled reception sensor section 20 sequentially receives the mixed radio signals and uploads them from the self-propelled reception sensor section 20 to the data processing device 40 .

The system configuration in which the free-running reception sensor section 20 and the data processing device 40 of the radio wave interference monitoring device 1 according to the present invention are communicably connected includes, for example, a wireless terminal having a wireless reception function (the free-running reception sensor section 20 This can be realized by edge computing (distributed computing) in which an edge server (equivalent to the data processing device 40) is placed near the data processing device 40 (equivalent to the data processing device 40), and the edge server processes data sent from the wireless terminal. .

In the radio wave interference monitoring device 1 according to the present invention, the self-propelled reception sensor section 20 receives mixed radio signals received by the reception section at each measurement point while automatically traveling by the travel mechanism section, and receives data from the self-propelled reception sensor section 20. At the same time as the received data is uploaded to the processing device 40, the imaged data captured by the imaging section is also uploaded to the data processing device 40.

In the radio wave interference monitoring device 1 according to the present invention, remote control of the self-propelled reception sensor unit 20 from the data processing device 40 and data processing in the data processing device 40 are performed, for example, as follows.

(Automatic driving control)
In the data processing device 40, the remote control function unit (refer to the remote control unit 43a to be described later) sends a movement instruction (refer to step S12 in FIG. 6) to the self-propelled reception sensor unit 20 each time. The mechanism section is driven and controlled, and the self-propelled reception sensor section 20 is made to automatically travel. The traveling route of the self-propelled reception sensor section 20 within the radio wave interference monitoring area 6 is set in advance based on, for example, a measurement/movement scenario, and the remote control function section, for example, as shown in FIG. Along the travel route, from the first measurement point immediately after the start point (indicated by symbol S in FIG. 5) to the last measurement point immediately before the end point (indicated by symbol F in FIG. 5), The vehicle automatically travels sequentially through a plurality of preset measurement points (indicated by black circles). Here, the remote control function section drives and controls the traveling mechanism section by transmitting a movement instruction at a certain measurement point, and causes the self-propelled receiving sensor section 20 that has received the movement instruction to automatically travel to the next measurement point. It is designed to be controlled so that The plurality of measurement points within the radio wave interference monitoring area 6 may be arranged in a mesh pattern, for example, as shown by black circles in FIG.
(Movement control to any point)
Further, the remote control function section drives and controls the traveling mechanism section by, for example, transmitting a movement instruction to an arbitrary point from a certain measurement point (see step S15 in FIG. 6), and controls the self-propelled reception sensor section 20. It is also possible to control the vehicle to travel automatically to any specified location. An instruction to move to an arbitrary point is given when an object registered in advance (for example, the IoT wireless unit 105) is recognized by the object recognition function described later, and the object is self-propelled toward the point where the object is located until it reaches there. You can automatically or manually instruct them to do so.

(measurement control)
In the data processing device 40, the remote control function section drives and controls the receiving section of the self-propelled receiving sensor section 20, each time the self-propelled receiving sensor section 20, which travels automatically under the automatic traveling control, reaches a measurement point and stops. Then, control is performed to perform a radio signal measurement (radio signal reception) operation at the measurement point. Through this measurement control and the automatic travel control, the radio interference monitoring device 1 allows the self-propelled receiving sensor unit 20 to automatically travel from the current position to the next measurement point in response to a movement instruction, or to automatically travel to an arbitrary point. Automatic travel and measurement operations can be carried out in which the robot automatically travels to an arbitrary position depending on the location of the vehicle, and then once stops and performs measurement operations until the measurement at the last measurement point is completed.

(imaging control)
In the data processing device 40, the remote control function section controls the imaging section of the self-propelled reception sensor section 20 during the period from the first measurement point to the last measurement point in accordance with the automatic travel control and measurement control. , controls to execute an imaging operation to take an image of the surroundings. This control can be realized, for example, by respectively sending an instruction to start imaging and an instruction to end imaging to the self-propelled reception sensor section 20 in accordance with the timing of the start and end of imaging.

(Monitor of captured image)
In the data processing device 40, a data control function unit (see data control unit 43b described later) receives image data captured by the imaging unit of the mobile reception sensor unit 20 from the mobile reception sensor unit 20, and converts the image data into an image. By processing the image and displaying it on, for example, the display unit 46, the surrounding image can be constantly monitored. For example, a 360-degree camera is used as the imaging unit. As a result, the data processing device 40 performs automatic driving and performs measurements while, for example, as shown in FIG. It is possible to monitor captured images within a circle with radius r.

(Interference source position estimation process)
In the radio wave interference monitoring area 6 shown in FIG. 2, the plurality of signal sources 110 are so-called interference sources that can cause radio wave interference to the space near each measurement point that the self-propelled receiving sensor section 20 passes by self-propelled. The radio wave interference situation caused by these interference sources changes from moment to moment. In the data processing device 40, the data control function unit preliminarily acquires images taken by the imaging unit of the self-propelled reception sensor unit 20, which is self-propelled so as to sequentially pass through each measurement point by remote control by the remote control function unit described above. It has an object recognition function that recognizes registered recognition target objects. Further, the data control function unit performs image recognition of the signal source 110 registered in advance as a recognition target object (for example, a characteristic part of the external shape of the IoT wireless unit 105) using the object recognition function, and It has an interference source position estimation function that estimates the location of the interference source in the radio wave interference monitoring area 6. In FIG. 5, the image of the IoT wireless unit 105 attached to the IoT device 100 as a signal source 110 is recognized from the image data in a circle centered on the point indicated by a △ mark in the figure, and the IoT wireless unit 105 is The figure shows an image in which the location of the IoT radio unit 105 (signal source 110) as an interference source is estimated after moving to the point where the IoT radio unit 105 (signal source 110) is located.
(Supplementary information on movement control to any point)
When the position of the interference source (signal source 110) is estimated by the interference source position estimation function described above, the remote control function unit instructs the self-propelled reception sensor unit 20 to move to that position (any point). It is now possible to send out the target (see step S15 in FIG. 6) and move it toward the estimated position (point).

(Analysis and monitoring of received data)
In the data processing device 40, the data control function section analyzes radio signals transmitted from the signal source 110 in the radio signals (received data) received by the receiving section of the self-propelled receiving sensor section 20 at each measurement point. An analysis function that generates data (analysis result data) for multiple analysis items (including direction of arrival of radio waves) that serve as indicators for monitoring interference conditions, and analysis of multiple analysis items at each measurement point (or its adjacent points). It has a display control function that displays result data as radio wave interference information.

The data processing device 40 controls the display of radio wave interference information corresponding to each point in the space of the radio wave interference monitor area 6, for example, from a basic monitor screen 70 (see FIG. 9) to be described later. Using the confirmation screen for each possible analysis item (see Figures 11 to 13), check the radio wave interference information for each analysis item, such as direction of arrival estimation, swept spectrum, heat map, and constellation, for the relevant point. It is designed to be visualized and displayed. The basic monitor screen 70 constitutes the monitor screen of the present invention.

Furthermore, in the data processing device 40, the location of the signal source 110 as an interference source whose position has been estimated by the interference source position estimation function described above is simulated in the radio wave interference monitor area 6 constituting the basic monitor screen 70 described above. It has a display control function to display on the map area. The estimated location of the interference source (signal source 110) is displayed in the map area using, for example, an interference source location mark 75 (see FIG. 9). The interference source position estimation function and display control function are realized by an interference source position estimation section 60 and a display control section 61, respectively, which will be described later.

Next, the configuration of the radio wave interference monitoring device 1 according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4. 3 and 4 show the overall configuration of the radio wave interference monitoring device 1, in particular, FIG. 3 shows the detailed configuration of the self-propelled receiving sensor section 20, and FIG. 4 shows the detailed configuration of the data processing device 40, respectively.

As shown in FIGS. 3 and 4, the radio wave interference monitoring device 1 according to the present embodiment includes a self-propelled reception sensor unit 20 that is capable of automatic travel (self-propulsion) through automatic travel control; A data processing device 40 that is communicably connected and performs remote control including automatic travel control of the self-propelled receiving sensor section 20 and data processing of data sent from the self-propelled receiving sensor section 20 by remote control. Configured with the necessary features.

First, the configuration of the self-propelled reception sensor section 20 will be explained. The self-propelled reception sensor section 20 includes a self-propelled function section 8, a camera section 9, an antenna device 10, a reception processing section 11, and a communication control section 12, as shown in FIG.

In the self-propelled reception sensor section 20, the self-propelled function section 8 includes a mechanical section for running and steering, such as wheels, gears, a drive source, a steering wheel, etc., mounted on the vehicle body, and a data processing device 40 (to be described later). It has a configuration that allows it to automatically travel on a flat surface (for example, a floor surface in the radio wave interference monitoring area 6) by remote control. In addition, the self-propelled function unit 8 is equipped with elements necessary for highly accurate and smooth remote control, such as a distance sensor, an acceleration sensor, a direction sensor, a gyro sensor, and an angle (steering angle) sensor. There is. Each section of the self-propelled function section 8 can be remotely controlled by the data processing device 40 via the communication control section 12. The self-propelled functional section 8 constitutes a traveling mechanism section of the present invention.

The camera section 9 is attached to the vehicle body of the self-propelled function section 8, and has a function as an imaging section that captures images of the surroundings in accordance with the automatic travel by the self-propelled function section 8. As the camera section 9, for example, a 360 degree camera can be used. The camera section 9 can also be remotely controlled by the data processing device 40 via the communication control section 12.

The antenna device 10 receives mixed radio signals transmitted from a plurality of signal sources 110 at various locations within a predetermined space that constitutes the radio interference monitoring area 6 (see FIG. 2). A specific configuration of the antenna device 10 includes, for example, a configuration in which three antennas each capable of receiving three orthogonal polarized waves as described in Patent Document 1 are rotated by a rotating body as a plurality of antenna elements; Alternatively, there is a configuration in which each antenna element of the array antenna is a plurality of antenna elements. The antenna device 10 constitutes a receiving section of the present invention.

The reception processing unit 11 performs reception processing on the mixed radio signals received by the antenna device 10 and passes them to the communication control unit 12, and includes a frequency conversion unit 11a, an AD conversion unit 11b, and a buffer unit 11c. It is composed of

The frequency converter 11a inputs a received signal (radio signal) received by the antenna device 10, and performs a process of converting the received signal into an intermediate frequency band signal (IF signal).

The AD converter 11b converts the received signal frequency-converted by the frequency converter 11a from an analog signal to a digital signal, and inputs the signal as received data to the buffer section 11c. The buffer unit 11c is a functional unit that temporarily stores the received data input from the AD conversion unit 11b until the communication control unit 12 performs the extraction process.

The communication control unit 12 is a part that communicates with the communication unit 41 of the data processing device 40 and controls communication with the data processing device 40. Specifically, the communication control unit 12 receives a movement instruction from the data processing device 40 and drives the self-propelled function unit 8 to perform an automatic driving operation, and also receives a movement stop instruction from the data processing device 40. Control is performed to stop the drive of the self-propelled function section 8 and stop automatic travel. There are two types of movement instructions: an instruction to move to a predetermined point and an instruction to move to an arbitrary point. In response to the former movement instruction, the communication control unit 12 controls the device to move along a preset route, and in response to the latter movement instruction, controls the device to move to a specified arbitrary point. Control.

Further, the communication control unit 12 receives an imaging start instruction from the data processing device 40 and drives the camera unit 9 to perform an imaging operation, and also receives an imaging end instruction from the data processing device 40 and drives the camera unit 9. The driving is stopped and the imaging operation is controlled to end. In addition, the communication control unit 12 controls an image data transmission operation that transmits the image data obtained by the image capture operation of the camera unit 9 to the data processing device 40 .

Further, the communication control unit 12 receives a measurement start instruction from the data processing device 40 and drives the antenna device 10 to perform a reception operation, and receives a measurement end instruction from the data processing device 40 and drives the antenna device 10. The drive is stopped and the reception operation is controlled to end. In addition, the communication control unit 12 extracts the received data stored in the buffer unit 11c through the signal reception processing in the reception processing unit 11 by the reception operation of the antenna device 10 from the buffer unit 11c, and transmits it to the data processing device 40. Controls the transmission operation of received data.

Next, the configuration of the data processing device 40 will be explained. The data processing device 40 is realized by, for example, a PC (personal computer), and performs the above-described remote control of the self-propelled reception sensor section 20, and also processes data sent from the self-propelled reception sensor section 20 by the remote control. (received data, imaging data) and processes the data. Regarding data processing, the data processing device 40 receives, for example, the above-mentioned received data from the self-propelled reception sensor section 20, and information (radio wave interference information) for monitoring the radio wave interference state based on the analysis result of the received data. Perform data processing to generate . Further, the data processing device 40 receives the above-mentioned image data from the self-propelled reception sensor unit 20, and controls the display unit 46 to display a captured image based on the image data.

As shown in FIG. 4, the data processing device 40 includes a communication section 41, an analysis processing section 42, a control section 43, a database 44, an input section 45, and a display section 46.

The communication unit 41 controls communication with the communication control unit 12 of the self-propelled reception sensor unit 20 under the control of the communication control unit 50 provided in the control unit 43 . Specifically, the communication unit 41 receives control information such as the above-mentioned movement instruction, movement stop instruction, imaging start instruction, imaging stop instruction, imaging end instruction, measurement start instruction, measurement end instruction, etc. from the communication control unit 50, and performs self-propulsion. The control information transmission operation to be sent to the reception sensor section 20 is performed. Further, the communication unit 41 receives, from the communication control unit 12, imaging data obtained by the imaging operation of the camera unit 9 of the self-propelled reception sensor unit 20 that has received the imaging start instruction, and receives the object recognition data from the data control unit 43b. The unit 59 or the display control unit 61 performs an operation of receiving imaging data. The object recognition unit 59 performs image recognition processing of an object based on images registered in advance from the input imaging data, and the display control unit 61 displays a monitor image during measurement based on the input imaging data. It is displayed in section 46.

Further, the communication unit 41 receives, for example, received data obtained by the reception operation of the antenna device 10 of the self-propelled reception sensor unit 20 that has received the measurement start instruction from the communication control unit 12, and inputs it to the analysis processing unit 42. Performs reception operation.

The analysis processing section 42 includes a signal separation section 42a, a direction of arrival estimation processing section 42b, and a signal analysis section 42c.

The signal separation unit 42a sequentially receives signals (digital signals) inputted from the communication unit 41, that is, for each measurement point (or arbitrary measurement point) in the predetermined space of the radio wave interference monitoring area 6 described above. A signal separation process is performed to separate a signal transmitted from one of the plurality of signal sources 110 from the mixed radio signals (the above-mentioned received data) received by the reception sensor section 20.

The direction of arrival estimation processing unit 42b inputs the signal separated by the signal separation unit 42a, that is, the radio signal transmitted from any one of the signal sources 110, and estimates the direction of arrival of the signal for each signal source 110. Perform processing. In this signal processing, the beamformer method, MUSIC method, ESPRIT method, etc. are applied as algorithms for estimating the direction of arrival.

The signal analysis unit 42c inputs the signal separated by the signal separation unit 42a (the incoming signal at the measurement point: the radio signal transmitted from any one of the signal sources 110), and analyzes the signal source for the incoming signal. At every 110 points, signal processing is performed to analyze items required for a radio wave interference monitor. Examples of items to be analyzed (analysis items) include electric field strength, sweep spectrum, and constellation. The signal separation section 42a, direction of arrival estimation processing section 42b, and signal analysis section 42c together with the analysis processing section 42 constitute an analysis processing section of the present invention.

The control unit 43 is configured by, for example, a computer device. This computer device performs predetermined information processing to realize the functions of the radio wave interference monitoring device 1, a data processing device 40, a self-propelled reception sensor section 20 (in particular, a self-propelled function section 8, a camera section 9, an antenna device 10), and a data processing device 40. ), a ROM (Read Only Memory) or HDD that stores the OS (Operating System) for starting up the CPU, other programs, and control parameters, etc. The computer has a nonvolatile memory such as a hard disk drive (Hard Disc Drive), and a RAM (Random Access Memory) that stores execution codes and data of the OS and applications used by the CPU for operation.

The computer device described above functions as the control unit 43 by the CPU using the RAM as a work area and executing a program stored in a non-volatile memory such as a ROM or an HDD. Specifically, in the control unit 43, the CPU executes each program stored in the nonvolatile memory in the work area of the RAM, thereby controlling the communication control unit 50, monitor condition setting unit 51, and antenna as shown in FIG. Control unit 52, imaging control unit 53, travel control unit 54, schedule management unit 55, interference measurement unit 56, heat map generation unit 57, interpolation processing unit 58, object recognition unit 59, interference source position estimation unit 60, display control Each function of the section 61 is realized. Here, the communication control section 50, monitor condition setting section 51, antenna control section 52, imaging control section 53, running control section 54, and schedule management section 55 are a remote control section 43a that remotely controls each section of the self-running reception sensor section 20. The interference amount measurement unit 56, heat map generation unit 57, interpolation processing unit 58, object recognition unit 59, interference source position estimation unit 60, and display control unit 61 are configured as functional units from the self-propelled reception sensor unit 20. It constitutes a functional unit as a data control unit 43b that performs data processing such as generating radio wave interference information based on the analysis results of received data sent.

In the remote control section 43a, the communication control section 50 controls communication between the communication section 41 and the communication control section 12 of the self-propelled reception sensor section 20. The communication control unit 50, for example, sends a movement instruction to the self-propelled reception sensor unit 20, and causes the self-propelled function unit 8 to automatically travel the self-propelled reception sensor unit 20. Further, the communication control section 50 sends a measurement start instruction to the self-propelled reception sensor section 20, and causes the self-propelled reception sensor section 20 to start a reception operation. In accordance with this, the communication control unit 50 transmits antenna drive control data, and drives and controls the antenna device 10, for example, so as to rotate the three antennas on a plane. In addition, the communication control unit 50 receives mixed radio signals (at each measurement point by the self-propelled receiving sensor unit 20 Performs communication control to receive (received data). When the reception of the reception data from the self-propelled reception sensor section 20 is completed, the communication control section 50, for example, sends a measurement end instruction to the self-propelled reception sensor section 20 to stop the reception operation. Furthermore, the communication control unit 50 sends an imaging start instruction to the self-propelled reception sensor unit 20 and causes the camera unit 9 to perform an imaging operation. Further, the communication control unit 50 performs communication control such that the self-propelled reception sensor unit 20 that has received the imaging start instruction receives image data captured by the camera unit 9 and sent out by the communication control unit 12 . In addition, the communication control unit 50 also provides control data for controlling each part of the self-propelled reception sensor unit 20 (self-propelled function unit 8, camera unit 9, antenna device 10, reception processing unit 11, etc.) as necessary. Execute control to send and receive.

The monitor condition setting unit 51 is a functional unit for setting the monitor condition of the radio wave interference state in the radio wave interference monitor area 6, and for example, the radio wave interference state is monitored by the communication control unit 50. It is capable of setting the frequency of a radio signal, etc., and constitutes the setting means of the present invention. The monitor condition setting unit 51 may be configured to set one of the 3.7 GHz band, 4.7 GHz band, and 28 GHz band as the frequency band to be monitored for radio wave interference, taking into consideration the operation of 5G, for example. The heat map generation unit 57, which will be described later, performs processing to generate radio wave interference information that reflects the interference of wireless signals in the frequency band set by the monitor condition setting unit 51.

The antenna control unit 52 performs mechanical control such as the direction of the antenna in the antenna device 10 of the self-propelled reception sensor unit 20 through communication control by the communication control unit 50 .

The imaging control unit 53 controls the imaging operation of the camera unit 9 of the self-propelled reception sensor unit 20 through communication control by the communication control unit 50 .

The travel control section 54 controls the operation of the self-propelled function section 8 of the self-propelled reception sensor section 20 regarding the automatic travel operation through communication control by the communication control section 50 .

The schedule management unit 55 is a functional unit that manages measurement schedules and movement schedules for the radio wave interference monitoring area 6 (see FIG. 2). The measurement schedule includes, for example, measurement intervals (movement intervals), measurement methods, etc., and the movement schedule includes movement routes, movement speeds, etc. In the remote control unit 43a, the travel control unit 54 performs automatic travel control of the mobile reception sensor unit 20 according to the movement schedule, and the antenna control unit 52 controls the wireless signal at the antenna device 10 of the mobile reception sensor unit 20. control the reception operation according to the measurement schedule. Measurement schedules and movement schedules may be generated and managed in the form of measurement/movement scenarios.

In the data control unit 43b, the interference amount measuring unit 56 is an arrival direction estimation processing unit 42b for the signals transmitted from each signal source 110 that is received from the self-propelled reception sensor unit 20 and separated by the signal separation unit 42a. Based on the arrival direction estimation result and the analysis result of each analysis item by the signal analysis unit 42c regarding the above-mentioned signal, a process is performed to measure the amount of radio wave interference (generate radio wave interference information). The radio wave interference information includes various analysis items such as electric field strength, constellation, and sweep spectrum, for example.

The heat map generation unit 57 calculates, from the analysis results of the electric field strength in the signal analysis unit 42c of the signals received from the free-running reception sensor unit 20 and transmitted from each signal source 110 separated by the signal separation unit 42a. Processing is performed to generate a heat map (2D electric field strength: electric field strength represented on a two-dimensional plane) corresponding to each signal source 110. The generated heat map (see FIGS. 12 and 14) is stored in the database 44 as radio wave interference information. In order to enable the heat map generation process described above, in the analysis processing unit 42, prior to the heat map generation process, the signal separation unit 42a selects one of the plurality of signal sources 110 from the mixed radio signals at each measurement point. The signal analysis unit 42c performs signal separation processing to separate the signals transmitted from each signal source 110, and the signal analysis unit 42c performs processing for analyzing the electric field strength of the signal transmitted from any one of the signal sources 110.

In particular, regarding the generation of the radio wave interference information described above, the analysis processing unit 42 has a processing function that generates radio wave interference information for each of the signal sources 110 to which the position information of the measurement point inputted from the input unit 45 is added. are doing. Note that, as the position information of the measurement point, position information obtained by a positioning sensor may be used instead of input from the input unit 45.

When the heat map generation unit 57 generates a heat map, the interpolation processing unit 58 calculates the electric field intensity value of each signal at a predetermined measurement point in the radio interference monitoring area 6 stored in the database 44 at the measurement point. An interpolation process is performed to calculate the value of the electric field strength at a point other than the above, and output the calculated value of the electric field strength. As an algorithm for interpolation processing, for example, nearest neighbor interpolation, bilinear interpolation, bicubic interpolation, etc. are applied. The heat map generation unit 57 generates the heat map based on the measured electric field strength at the predetermined measurement points stored in the database 44 and the electric field strength values at points other than the measurement points calculated by the interpolation process. generate.

The object recognition unit 59 is a functional unit that recognizes an object as a signal source 110 based on images registered in advance based on the imaging data received from the self-propelled reception sensor unit 20. Here, as the image, for example, an external image of the IoT wireless unit 105, which is the signal source 110, is registered. Thereby, the object recognition unit 59 can image-recognize the IoT wireless unit 105, that is, the signal source 110, from the received image data including the external appearance image of the IoT wireless unit 105, using the characteristic part of the external image as a key. can.

The interference source position estimation unit 60 is a functional unit that cooperates with the object recognition unit 59 and estimates the position of the interference source within the radio wave interference monitoring area 6. In estimating the location of the interference source, for example, the object recognition function of the object recognition unit 59 uses an image that matches an image registered in advance as a recognition target object (the external image of the signal source 110, that is, the IoT wireless unit 105). When an object is image recognized, it is necessary to measure the direction and distance from the current point to the point where the object (signal source 110) is present. As an example, the direction of an object (signal source 110) found through image recognition is measured with a direction sensor, the distance to the object (signal source 110) is measured with a distance sensor, and then these directions and distances are measured. It becomes possible to estimate the location of the signal source 110 as an interference source based on the measured value.

The display control unit 61 displays a basic monitor screen 70 (see FIG. 9) having a map area that defines the radio interference monitoring area 6 on the display unit 46, and in response to an operation specifying an arbitrary position in the map area, This is a functional unit that performs display control to display radio wave interference information generated corresponding to the designated position in the radio wave interference monitor area 6 on the display unit 46. In the configuration of the basic monitor screen 70 shown in FIG. 9, the radio wave interference monitor area display area 71 constitutes the above-mentioned map area.

The display control unit 61 also has a display control function that displays an interference source location mark 75 indicating that the signal source 110 is located as an interference source in the radio wave interference monitor area display area 71 of the basic monitor screen 70, that is, in the map area. It also has The display control unit 61 refers to the estimation result of the location of each signal source 110 as an interference source by the interference source position estimating unit 60, and displays each signal source 110 (i.e., the interference source) in the radio wave interference monitor area display area 71. ), interference source location marks 75 are displayed at locations corresponding to the locations of the interference sources. As shown in FIG. 9, in this embodiment, a star-shaped figure is displayed as the interference source location mark 75, as an example. The interference source location mark 75 is not limited to this, and various forms can be applied as long as it can be explicitly displayed in the map area.

The database 44 is received from the self-propelled reception sensor unit 20, and after the analysis processing unit 42 performs signal separation processing, direction of arrival estimation processing, and analysis processing of a plurality of analysis items, the estimation result of the direction of arrival and each analysis are stored in the database 44. This is a functional unit for storing the analysis results of items as radio wave interference information (including heat maps). The database 44 also includes a heat map generated by the heat map generation unit 57, image data of the object to be recognized used for object recognition by the object recognition unit 59, object recognition results based on the image data, and information obtained by the interference source position estimation unit 60. Data such as the position estimation result of the interference source (signal source 110) is also stored.

The input unit 45 is a functional unit for inputting various information such as commands, and is composed of input devices such as a keyboard and a mouse. In this embodiment, the input unit 45 has a function (as an operation unit) for inputting various instructions and control information for frequency settings related to direction of arrival estimation processing, start or end of radio wave interference monitoring processing, and remote control. function).

The display unit 46 is a functional unit that displays various information such as an input screen for the above-mentioned various information and measurement results. In this embodiment, the display unit 46 has a function of displaying various screens (see FIGS. 8 to 14) for monitoring radio wave interference. The display unit 46 may be configured with a touch panel or the like to enable input of setting parameters, commands, and the like.

As described above, the radio interference monitoring device 1 according to the present embodiment detects incoming signals coming from the surrounding wireless environment, that is, mixed radio signals transmitted from a plurality of signal sources 110 within the radio interference monitoring area 6. , are received by the antenna device 10 of the self-propelled reception sensor section 20 which is remotely controlled to automatically travel via each measurement point, and the received data at each measurement point is sent to the data processing device 40 for data processing. By doing this, the signal transmitted from each signal source 110 is separated from the reception data received at each measurement point by the self-propelled reception sensor unit 20, and the direction of arrival of the signal transmitted from each signal source 110 is estimated. At the same time, various characteristics such as electric field strength of each signal source 110 are measured. Further, the radio wave interference monitoring device 1 performs image recognition of the signal source 110 (i.e., the IoT wireless unit 105) from the image data captured by the camera unit 9 of the self-propelled reception sensor unit 20, and uses the image recognition result to recognize the signal source 110. The self-propelled receiving sensor unit 20 is moved to the location where the signal source 100 is located, and the location of the signal source 100 as an interference source is estimated, and the estimated location of the interference source is mapped to the radio interference monitor area 6. It also has a display control function to display an interference source location mark 75 in the map area.

The radio interference monitoring device 1 according to the present embodiment can be used, for example, in a local 5G environment, and the frequency bands of incoming signals to be captured include, for example, 4.6 GHz to 4.8 GHz and 28.2 GHz to 28.2 GHz. A band such as 29.1 GHz is assumed. The radio interference monitoring device 1 is not limited to use in a local 5G environment, but can also be used in other wireless systems such as WiFi.

In addition, in the radio wave interference monitoring device 1, the antenna device 10 provided in the self-propelled reception sensor unit 20 is not limited to the configuration described above. If the direction of arrival and various characteristics can be comprehensively acquired for inter-area terminal interference, base station interference, etc. in the frequency bands mentioned above, the antenna type, number, arrangement, driving method, and direction of arrival can be used. Various methods can be applied as estimation methods.

Next, the operation of the radio wave interference monitoring device 1 according to this embodiment will be explained. FIG. 6 shows an operation control sequence between the self-propelled reception sensor unit 20 and the data processing device 40 related to the radio interference information (analysis result data) acquisition process in the radio interference monitoring device 1.

For example, when monitoring radio interference within the radio interference monitoring area 6 (see FIG. 2) using the radio interference monitoring device 1, as shown in FIG. needs to be initialized.

In order to realize this, the data processing device 40 downloads the measurement/movement scenario from a storage means provided in a network (not shown) by an appropriate method, and the communication control section 50, for example, downloads the measurement/movement scenario from a storage means provided in a network, etc. In response to the initialization operation, the downloaded measurement/movement scenario is sent to the self-propelled reception sensor section 20 along with an initialization instruction (step S10).

In the self-propelled reception sensor section 20, the communication control section 12 receives the measurement/movement scenario and initialization instructions sent from the data processing device 40. Subsequently, the communication control unit 12 initializes the self-propelled reception sensor unit 20 by holding the received measurement/movement scenario as a new measurement/movement scenario in accordance with the initialization instruction (step S20).

After sending the measurement/movement scenario and initialization instructions to the self-propelled reception sensor section 20 in step S10, the data processing device 40 causes the monitor condition setting section 51 to instruct the monitor condition setting section 51 to set monitor conditions including the frequency band to be monitored. is sent to the self-propelled reception sensor unit 20 by the communication control unit 50 (step S11).

On the other hand, in the self-propelled reception sensor section 20, the communication control section 12 receives the setting instruction of the monitor condition sent from the data processing device 40, and based on the setting instruction, the communication control section 12 sets the monitor condition including the frequency band to be monitored. Settings are made (step S21).

Waiting for the monitoring conditions to be set in step S21, in the data processing device 40, the traveling control section 54 sends a movement instruction to the self-driving reception sensor section 20 through the communication control section 50 (step S12). .

At this time, the self-propelled reception sensor section 20 is located at a position (indicated by the symbol S in FIG. 5) immediately before the first measurement point on the travel route (see FIG. 5) in the radio wave interference monitoring area 6. In the self-propelled receiving sensor section 20, when the communication control section 12 receives the movement instruction sent from the data processing device 40, it drives the self-propelled function section 8 according to the measurement/movement scenario, and the self-propelled receiving sensor section 20 is initially activated. control to move it to the measurement point (step S22).

Subsequently, in the self-propelled reception sensor unit 20, the communication control unit 12 performs control to execute a measurement operation according to the measurement/movement scenario and upload data such as received data obtained by the measurement operation to the data processing device 40. Execute (step S23). In this measurement operation, the communication control unit 12, for example, sends an antenna drive command to rotationally drive the three antenna elements of the antenna device 10, and performs a reception operation to receive mixed radio signals at the measurement point. The antenna device 10 is driven and controlled. The radio signal received by this receiving operation is uploaded to the data processing device 40 as received data. Further, the communication control unit 12 drives and controls the camera unit 9 to capture an image, and controls the uploading of the captured data to the data processing device 40 .

On the other hand, after sending the movement instruction to the self-propelled receiving sensor section 20 in step S12, the data processing device 40 performs a measurement operation based on the data sent from the self-propelled receiving sensor section 20 through the measurement operation in step S23. Each process of calculating the amount of interference, estimating the direction of arrival, managing the measurement results, and recognizing the object is executed (step S13).

The processes of calculating the amount of interference, estimating the direction of arrival, and managing the measurement results in step S13 are performed, for example, as follows. That is, in the data processing device 40 , the communication unit 41 receives the received data uploaded from the mobile reception sensor unit 20 , and inputs the received data to the analysis processing unit 42 .

The analysis processing unit 42 analyzes the reception data received from the self-propelled receiving sensor unit 20, that is, the mixed radio signals received at each measurement point by the self-propelled receiving sensor unit 20, from any one of the plurality of signal sources 110. The signal separation unit 42a performs signal separation processing to separate the transmitted signals. Furthermore, the direction of arrival estimation processing section 42b performs direction of arrival estimation processing ("estimation of direction of arrival") for the signals transmitted from each of the plurality of signal sources 110 from which signals have been separated, and furthermore, the signal analysis section 42c performs Analysis processing ("interference amount calculation") for each analysis item of electric field strength, constellation, and sweep spectrum for the signals transmitted from each of the plurality of separated signal sources 110 is performed on the mixed signals received at each measurement point. Execute for each wireless signal received.

Analysis result data of a plurality of analysis items obtained through analysis processing in the analysis processing unit 42 is stored in the database 44 as monitor information as radio wave interference information ("measurement result management"). Here, the positional information at the measurement point within a predetermined space is recorded in advance, and the analysis results of each analysis item performed by the analysis processing section 42 at the measurement point are stored in the database 44 in association with the above-mentioned positional information. It has become.

In addition, the heat map generation unit 57 performs interpolation processing of the electric field strength at points other than the measurement points based on the analysis results of the electric field strength by the analysis processing unit 42 stored in the database 44, thereby generating multiple signals. A process of generating a heat map corresponding to each of the sources 110 is further performed. The generated heat map is also stored in the database 44 as radio wave interference information (analysis result data) ("interference amount calculation", "measurement result management").

Further, the object recognition process in step S13 is performed as follows, for example. That is, during object recognition processing, in the data processing device 40, the communication unit 41 receives image data uploaded from the self-propelled reception sensor unit 20, and inputs the received image data to the object recognition unit 59 of the data control unit 43b. do. The object recognition unit 59 performs object recognition processing to recognize (find) an object to be image recognized (for example, the IoT wireless unit 105 that is the signal source 110) registered in advance from the image data received from the self-propelled reception sensor unit 20. Execute.

Next, in the data processing device 40, for example, the travel control unit 54 determines whether or not something that looks like an object (signal source 110) has been recognized as a result of the object recognition process in step 13 (step S14). If something that looks like the signal source 110 is not recognized here (NO in step S13), in the data processing device 40, the traveling control section 54 sends a movement instruction to the self-driving reception sensor section 20 through the communication control section 50. (Step S12).

On the other hand, in the self-propelled receiving sensor section 20, when the communication control section 12 receives the movement instruction sent from the data processing device 40, it drives the self-propelled function section 8 according to the measurement/movement scenario, and the self-propelled receiving sensor section 20 to the next measurement point (step S22).

After this, the self-propelled reception sensor unit 20 performs measurement operations and data upload processing (step S23), and the data processing device 40 further performs interference amount calculation, direction of arrival estimation, measurement result management, and object recognition. Each process is executed (step S13).

As a result of the object recognition process, if an object that looks like the signal source 110 is not recognized (NO in step S14), the process in step S12 in the data processing device 40, the process in step S23 in the self-propelled receiving sensor unit 20, And the process of step S13 in the data processing device 40 is continuously performed.

On the other hand, if an object resembling the signal source 110 is recognized as a result of the object recognition process in step S13 (YES in step S14), the traveling control unit 54 transmits the image-recognized signal to the self-running receiving sensor unit 20. The communication control unit 50 sends a movement instruction to a point (any point) where an object that looks like the source 110 is located (step S15).

In the self-propelled reception sensor section 20, when the communication control section 12 receives an instruction to move to an arbitrary point (a point where an object that appears to be the signal source 110 is located) sent from the data processing device 40, the communication control section 12 receives an instruction to move to an arbitrary point (a point where an object that looks like the signal source 110 is located), and then The self-propelled function unit 8 is driven without any action, and the self-propelled reception sensor unit 20 is controlled to be moved from the measurement point (movement starting point) to an arbitrary point indicated by the movement instruction (step S24). ).

When the arbitrary point is reached, the self-propelled receiving sensor unit 20 performs the same measurement operation as in step S23 above, uploads the received data and imaged data to the data processing device 40, and also uploads the data for estimating the interference source position. is also uploaded (step S25). The data for estimating the interference source position is, for example, data on the direction and distance from the measurement point that is the starting point of the movement in step S24 to the reached point (arbitrary point).

On the other hand, after sending an instruction to move to an arbitrary point to the self-propelled receiving sensor section 20 in step S15, the data processing device 40 receives the instruction sent from the self-propelled receiving sensor section 20 by the receiving operation in step S25. Based on the incoming data (for example, received data), the processes of calculating the amount of interference, estimating the direction of arrival, and managing the measurement results are executed similarly to step S13 above (step S16).

In step S16, the data processing device 40 sends the interference source position estimation data sent from the self-propelled reception sensor unit 20 in accordance with the reception operation in step S25 to the interference source position estimation unit 60 of the data control unit 43b. The interference source position estimating unit 60 performs a process of estimating the position of the signal source 110 as an interference source based on the data for estimating the interference source position. Further, the interference source position estimating unit 60 performs a point registration process of storing the estimated location of the interference source in the database 44, for example.

In step S16, after calculating the amount of interference, estimating the direction of arrival, managing the measurement results, estimating the position of the interference source, and registering the point, the processing of the data processing device 40 returns to step S12. Thereafter, in the radio interference monitoring device 1, a series of processes of steps S12, S22, S23, S13, S14, and S12 or steps S14, S15, and S24 are performed between the data processing device 40 and the self-propelled reception sensor section 20. , S25, S16, and S12 are repeatedly executed. As a result, when the measurement operation at the last measurement point (the point indicated by the symbol F in FIG. 5) is completed, radio interference information covering the entire radio interference monitoring area 6 and the location of the interference source are registered. This means that

Next, the radio wave interference monitoring processing operation of the radio wave interference monitoring device 1 according to the present embodiment will be explained with reference to the flowchart shown in FIG. 7, steps S30 to S40 correspond to the processing of steps S12 to S16 by the data processing device 40 in the operation control sequence of FIG. 6, and steps S40, S41, and S42 are the measurement results of steps S13 and S16 of FIG. It shows display control based on analysis result data (radio wave interference information) stored in the database 44 through management processing.

In the radio wave interference monitoring device 1 according to the present embodiment, in order to execute the radio wave interference monitoring process, as shown in FIG. It is necessary to send a movement instruction to (see steps S12 and S15). A movement instruction or a movement instruction to an arbitrary point is, for example, received by receiving a predetermined movement instruction operation at the input unit 45 of the data processing device 40 and sent to the self-propelled reception sensor unit 20 under the control of the communication control unit 50. Can be sent.

Here, it is assumed that the data processing device 40 sends a movement instruction to the self-propelled reception sensor section 20 (step S30). In this case, the data processing device 40 then uses the received data (see step S23 in FIG. 6) transmitted from the self-propelled receiving sensor section 20 that has received the movement instruction, that is, the self-propelled receiving sensor section 20 automatically travels. During this process, the communication unit 41 receives the mixed radio signals received at each measurement point and the imaging data also transmitted from the self-propelled reception sensor unit 20 (step S31).

To explain the process in step S31 in more detail, in the self-propelled reception sensor unit 20 that has received the movement instruction, the communication control unit 12 cooperates with the antenna control unit 52 of the data processing device 40 to target the antenna device 10. Performs control necessary for direction of arrival estimation. In accordance with this, the remote control unit 43a of the data processing device 40 cooperates with the communication control unit 12 to cause the antenna device 10 to receive a wireless signal in the frequency band to be monitored, which is preset by the monitor condition setting unit 51, The self-propelled reception sensor unit 20 is drive-controlled so as to perform reception processing of the received wireless signal.

Through this drive control, in the self-propelled receiving sensor unit 20, the frequency of the reception signal from the antenna device 10 at the measurement point is converted by the frequency conversion unit 11a, and the frequency-converted radio signal is converted from an analog signal by the AD conversion unit 11b. The received data is converted into a digital signal and stored in the buffer section 11c. The received data stored in the buffer section 11c is taken out by the communication control section 12 at an appropriate timing and sent to the data processing device 40.

In the above step S31, the data processing device 40 transmits the received data sent from the self-propelled receiving sensor section 20 (the mixed radio signals received and processed by the self-propelled receiving sensor section 20 at each measurement point) by the communication section 41. and inputs the received data to the analysis processing section 42. Here, the analysis processing unit 42 performs analysis processing for each analysis item on the received data at each measurement point received from the self-propelled reception sensor unit 20 (step S32).

To describe the process in step S32 in more detail, the reception data from the self-propelled reception sensor unit 20 received in step S31, that is, the mixed radio signals received at each measurement point, are the signals of the analysis processing unit 42. The signal is input to the separation section 42a. The signal separation unit 42a separates a plurality of signal source components arriving from the surroundings at the measurement point from the input radio signal, and inputs the separated signal source components to the arrival direction estimation processing unit 42b and the signal analysis unit 42c. do.

The arrival direction estimation processing unit 42b performs a process of estimating the arrival direction of each separated input radio signal, that is, the mixed radio signal received at the measurement point. Regarding the direction of arrival estimation process, for example, a search method such as that described in Patent Document 1 is applied with the radio signal (signal source component) transmitted from one of the plurality of signal sources 110 being separated. The arrival direction of radio waves can be estimated for each signal source 110. Further, the signal analysis unit 42c performs a process of analyzing analysis items required for a radio wave interference monitor for each separated input wireless signal.

After performing the radio signal analysis process (signal separation, arrival direction estimation, analysis) in step S32, the data control unit 43b takes in the analysis results (arrival direction estimation result and analysis result) from the analysis process, and It is stored in the database 44 as analysis result data of mixed radio signals transmitted from each signal source 110 at the point (step S33).

Here, the data control unit 43b stores the analysis result data in the database 44 in association with the position information at the measurement point in the radio wave interference monitoring area 6. The database 44 may have a configuration in which position information of each measurement point within the radio wave interference monitoring area 6 is recorded in advance.

Further, in the data processing device 40, the imaging data received together with the received data from the self-propelled reception sensor unit 20 in step S31 is input from the communication unit 41 to the object recognition unit 59 of the data control unit 43b. Here, the object recognition unit 59 performs image recognition regarding whether or not there is an object registered in advance to be recognized in the input imaging data, for example, an object that looks like the signal source 110 (IoT wireless unit 105) (step S34). . In this image recognition, if the object recognition unit 59 determines that the object to be recognized does not exist (NO in step S35), a movement instruction is sent to the self-propelled reception sensor unit 20 again (step S30). . After this, the data processing device 40 continues the processing of steps S30 to S35.

On the other hand, if the object recognition unit 59 determines that the object to be recognized (signal source 110) exists (YES in step S35), the data processing device 40 instructs the self-propelled receiving sensor unit 20 about this object. A movement instruction to the location (any location) where is located is sent (step S36).

Subsequently, the data processing device 40 receives the received data at the arbitrary point of the movement destination transmitted from the self-propelled receiving sensor section 20 that received the movement instruction to the arbitrary point in step S35, and also receives the received data from the self-propelled receiving sensor section 20 The communication unit 41 receives interference source position estimation data transmitted from the communication unit 41 (step S37). Examples of the interference source position estimation data include azimuth data measured by a azimuth sensor, distance data measured by a distance sensor, and the like. The azimuth data indicates, for example, the azimuth of a line connecting the movement start point and the subsequent destination point in step S36, and the distance data similarly indicates the process between the movement start point and the destination point.

Next, the data processing device 40 executes the radio signal analysis process similar to step S32 above, and the storage process of the analysis result data into the database 44 similar to step S33 above (step S38).

Further, in the data processing device 40, the interference source position estimating unit 60 detects the interference of the signal source 110 (IoT wireless unit 105) registered as the recognition target object based on the interference source position estimation data received in step S37. A process of estimating the location of the interference source is executed, and a point registration process of registering the estimated location in the database 44 in correspondence with the interference source is performed (step S39).

When the point registration process in step S39 is completed, in the data processing device 40, for example, the travel control unit 54 checks whether there is a next measurement point (step S40). If it is determined that there is a next measurement point (YES in step S40), the data processing device 40 continues to perform the processes from step S30 onwards.

On the other hand, if it is determined that there is no next measurement point (NO in step S40), the heat map generation unit 57 continues to analyze the electric field strength of the analysis result data stored in the database 44 up to that point. Based on the results, heat maps corresponding to each of the plurality of signal sources 110 are generated by, for example, having the interpolation processing unit 58 perform the above-mentioned electric field strength interpolation processing for points other than the measurement points (step S41). .

In the electric field strength interpolation process in step S41, the interpolation processing unit 58 calculates the electric field strength value at a point other than the measurement point from the electric field strength measurement value of each signal at a predetermined measurement point in the radio interference monitoring area 6. Calculate.

After the heat map and the radio interference information generation process for each analysis item and the point registration process for registering the estimated position of the interference source (see step S39) are completed, for example, the radio interference information in the input unit 45 is completed. Upon receiving a predetermined display start operation for display, the display control unit 61 reads the analysis result data for each measurement point of each signal source 110 from the database 44 (step S42), and displays the data at each measurement point and measurement interpolation point. Control is performed to display the correspondingly generated radio wave interference information on the display section 46 using, for example, a basic monitor screen 70 as shown in FIG. Here, the display control unit 61 reads information on the location of the interference source registered as a point in step S39 in FIG. Control is performed so that the interference source location mark 75 is aligned and displayed at a location corresponding to the location of each signal source 110 of 71 (step S43).

During the display control of the radio wave interference information in step S42, the basic monitor screen 70 can be closed in response to a predetermined end operation on the input unit 45, and the series of radio wave interference monitor processing operations can be ended.

Next, the radio interference information display processing operation in step S43 in FIG. 7 of the radio interference monitoring device 1 according to the present embodiment will be described in detail with reference to the flowchart shown in FIG. 8.

The radio wave interference information display process in FIG. 8 is started, for example, by receiving a predetermined display process start operation at the input unit 45. Upon receiving the display processing start operation, the display control unit 61 first displays the basic monitor screen 70 used for radio wave interference monitoring on the display unit 46 (step S50).

As shown in FIG. 9, the basic monitor screen 70 includes an area image 71a imitating the radio interference monitoring area 6 (for example, a planar arrangement image of the radio interference monitoring target area shown in FIG. 2), and a grid sectioned into a grid. It has a radio wave interference monitor area display area 71 on which a state map image 71b is superimposed, and an operation part area 72 for performing various operations. The operation section area 72 is a section for performing operations related to various commands, etc., and in this example, it is composed of a functional section for instructing operations to enlarge or reduce the information displayed in the radio wave interference monitor area display area 71. There is. The operating section area 72 may have a configuration having other operating functions.

As described above, in the radio wave interference monitor area display area 71, the interference source location mark 75 is displayed at a location corresponding to the location of the interference source (signal source 110) estimated by the interference source location estimation unit 60. (Step S51) (see FIG. 9). By checking the displayed interference source location mark 75, the user can easily visually recognize the location of each signal source 110 as an interference source within the radio wave interference monitor area display area 71.

Furthermore, in the radio wave interference monitor area display area 71, a position corresponding to an arbitrary point within the radio wave interference monitor area 6 can be selectively specified using the input unit 45, for example, with respect to the grid map image 71b. It has become. The display control unit 61 displays each signal separated from the signal arriving at the specified position in the radio interference monitoring area 6 in response to an operation from the input unit 45 that specifies an arbitrary position on the grid map image 71b. Radio wave interference information regarding the signal transmitted from the source 110 is displayed on the display section 46. However, if the specified position corresponds to a point other than the above-described predetermined measurement points, the displayed radio wave interference information is limited to a heat map.

On the basic monitor screen 70, the intersections of vertical and horizontal lines (dotted lines) forming the grid map image 71b correspond to predetermined measurement points (points indicated by black circles in FIG. 5) in the radio wave interference monitor area 6. As a result, in the radio interference monitoring device 1 according to the present embodiment, by specifying a position corresponding to the above-mentioned intersection of the grid map image 71b from the input unit 45, radio wave interference information regarding an incoming signal to the specified position can be obtained. This can be confirmed on the basic monitor screen 70.

In addition, in the radio interference monitoring device 1 according to the present embodiment, in addition to the predetermined measurement points, for example, a point (arbitrary point) where an object that looks like the signal source 110, that is, the IoT wireless unit 105 is located, is measured. The interference amount calculation process (radio wave interference information generation process) is performed after the robot is made to travel by itself to the point by remote control (see step S25 in FIG. 6). Therefore, in the radio wave interference monitoring device 1 according to the present embodiment, even when the position where the interference source location mark 75 of the grid-like map image 71b is displayed is specified from the input unit 45, the interference source location mark 75 is not displayed. Radio wave interference information regarding the incoming signal can be confirmed on the basic monitor screen 70.

Further, in the radio interference monitoring device 1, even when a point (non-measurement point) that is not a measurement point in the radio interference monitoring area 6 is specified, the signal source is separated from the signal arriving at the specified non-measurement point. Radio wave interference information (however, limited to heat maps) regarding the components can be confirmed on the basic monitor screen 70.

In order to realize this, the control section 43 of the data processing device 40 is equipped with an interpolation processing section 58. When the heat map generation unit 57 generates a heat map, the interpolation processing unit 58 calculates the electric field strength at a point other than the measurement point from the measured value of the electric field strength of each separated signal (signal source component) at a predetermined measurement point. It has an interpolation processing function that calculates the value of and outputs the calculated value of electric field strength. The radio wave interference information whose value can be interpolated by the interpolation processing unit 58 is limited to a heat map. As a result, in the radio interference monitoring device 1 according to the present embodiment, it is possible to check the heat map on the basic monitor screen 70 even for points corresponding to non-measurement points in the radio interference monitoring area 6 (see FIG. 2). It becomes possible.

When the basic monitor screen 70 having the screen structure described above is displayed on the display unit 46 (steps S50 and S51), if the user wishes to check the radio wave interference state, the user can select the desired state on the radio wave interference monitor area display area 71. An operation is performed to specify the confirmation request point (step S52).

When the confirmation request point is specified, the display control unit 61 displays a display that has arrived at the requested point based on the analysis result data corresponding to the specified request point among the analysis result data stored in the database 44. A direction-of-arrival map 73 for each signal source showing the direction of arrival of radio signals transmitted from each separated signal source 110 is displayed in an overlapping manner on the radio wave interference monitor area display area 71 (step S53).

Here, the direction-of-arrival map 73 for each signal source will be explained in detail with reference to FIG. 10. FIG. 10 is an enlarged view of the direction-of-arrival diagram 73 for each signal source, and (a) shows an example when the direction of arrival of the signal transmitted from the signal source 110 at the request point is 0 degrees, (b) also shows an example when the direction of arrival is 90 degrees. As shown in FIG. 10, the direction of arrival map 73 for each signal source shows all of the incoming signals arriving at the measurement point on an azimuth circle diagram 81a that defines a 360-degree azimuth (circle) centered on the measurement point. It has a screen structure that displays a received power graph 81b that represents received power in a direction as a line (cloud-shaped line) continuous in the circumferential direction. The received power graph 81b shows that the magnitude of the received power is expressed by the distance from the center of the circle to the circumferential end, and the greater the distance from the center, the greater the power. Further, the direction in which the received power is maximum is determined as the direction of arrival of the incoming signal, and the direction of arrival is indicated by an arrow 81c. In other words, the arrival direction diagram 73 for each signal source is designed to express that the incoming signal is arriving from the direction indicated by the arrow 81c, and the angle of the azimuth of the arrival direction is adjusted to fit within the direction of arrival column 81d. It is designed to be displayed.

In FIG. 9, signals are transmitted from two signal sources 110 (for example, two interference sources indicated by interference source location marks 75) to a confirmation request point (default measurement point: indicated by a small circle) indicated by symbol Po1. A display example of the direction-of-arrival diagram 73 for each signal source is shown when two radio signals are arriving. In this direction-of-arrival diagram 73 for each signal source, the direction-of-arrival diagram 73a in the form shown in FIG. An arrival direction diagram 73b in the form shown in FIG. 10(b) corresponding to the signal source 110 is displayed.

Referring to FIG. 10(a), the first signal source 110 displayed in the left area of the direction of arrival diagram 73 for each signal source is located directly above the figure, that is, at "0 degree" in the azimuth circle diagram 81a. It can be determined that the signal is coming from a specified direction. Further, referring to FIG. 10(b), regarding the second signal source 110 displayed in the right area of the direction of arrival diagram for each signal source 73, the right side of the figure, that is, the azimuth circle diagram 81a, shows "90 degrees". It is possible to determine that the signal is coming from the direction defined by the direction. In FIG. 9, a display example of the direction of arrival map 73 for each signal source is shown when a specified measurement point is specified as the confirmation request point, but when a point corresponding to the interference source location mark 75 is specified, Similarly, the direction of arrival map 73 for each signal source will be displayed.

On the basic monitor screen 70 shown in FIG. 9, an operation is performed to select either the direction of arrival diagram 73a displayed in the left area of the direction of arrival diagram 73 for each signal source or the direction of arrival diagram 73b displayed in the right area of the direction of arrival diagram 73 for each signal source. Accordingly, the radio wave interference information of the signal source 110 corresponding to the selected direction of arrival map 73a or 73b can be displayed on the basic monitor screen 70 for confirmation. The radio wave interference information is not limited to being displayed on the basic monitor screen 70, but may be displayed using, for example, a multi-window that increases the number of display windows each time it is selected. According to the display configuration using a multi-window, it is possible to visually compare all radio wave interference information that has been selected so far without erasing the previously selected radio wave interference information.

Returning to FIG. 8 again, the radio wave interference information display process will be described. When confirming the radio wave interference information of any signal source 110 while displaying the direction of arrival map 73 for each signal source in step S53, the user selects the signal source 110 that corresponds to the desired signal source 110 in the direction of arrival map 73 for each signal source. Either the direction of arrival map 73a or 73b is selected (step S54).

By accepting the selection of the direction of arrival diagram 73a or 73b, the display control unit 61 displays a selection menu of radio wave interference information regarding the signal source 110 corresponding to the selected direction of arrival diagram (step S55). The selection menu is configured so that each analysis item (sweep spectrum, heat map, constellation, etc.) of radio wave interference information can be selected.

As a result, when any analysis item corresponding to the desired signal source 110 is selected from the selection menu in step S55, the display control unit 61 displays the analysis result data of the selected analysis item. Control is performed to read the information from the database 44 and display it on the display unit 46 as radio wave interference information (step S56).

Here, if the analysis item selected in step S55 is, for example, a sweep spectrum, a heat map, or a constellation, the display control unit 61 displays the corresponding Controls the display of radio wave interference information for analysis items.

According to the series of radio wave interference information display control shown in FIG. The direction of arrival diagram 73 for each signal source 110, the analysis results for each analysis item corresponding to any specified position, and the generation results of the heat map are further transmitted to radio waves according to the operation of sequentially specifying each analysis item and heat map. It can be displayed as interference information. With this, by specifying an arbitrary position in the map area, radio wave interference information for each analysis item corresponding to multiple signal sources 110 at the arbitrary position can be selectively visualized and displayed for easy confirmation. becomes possible. Furthermore, in the radio wave interference monitoring device 1 according to the present embodiment, the location of the signal source (interference source) 110 is clearly indicated by the interference source location mark 75 in the map area of the basic monitor screen 70. This allows the user to easily check the location of the interference source when opening the basic monitor screen 70, before selectively displaying and checking analysis items such as a swept spectrum, heat map, and constellation. become.

Next, a specific display form of radio wave interference information in the radio wave interference monitoring device 1 according to the present embodiment will be described with reference to FIGS. 11 to 13.

In controlling the display of radio wave interference information in step S56 of FIG. 8, the display control unit 61 displays the sweep spectrum shown in FIG. The sweep spectrum is visually displayed using the spectrum confirmation screen 82. As described above, the swept spectrum may be displayed using a multi-window or the like.

As shown in FIG. 11, the sweep spectrum confirmation screen 82 has a waveform display area 82a and a common data display area 82b. The waveform display area 82a is an area that displays the swept spectrum waveform of the signal source 110 corresponding to the measurement point. In the waveform display area 82a, an area for displaying information related to the analysis of the signal source 110 is provided around the sweep spectrum waveform display area, and setting data such as RBW is displayed in the area. The common data display area 82b has columns such as "Frequency and Time", "Level", "Trigger", etc., and setting data corresponding to the column is displayed in each column.

In addition, in response to the selection of the analysis item "heat map" in step S55 of FIG. 8, the display control unit 61 displays a heat map confirmation screen 83 shown in FIG. 12 on the basic monitor screen 70 in step S56. Visualize and display heatmaps using

As shown in FIG. 12, the heat map confirmation screen 83 has a screen structure in which an area image 83a, a grid map image 83b, and a radio wave condition image 83c are displayed superimposed on each other in a transparent state. The area image 83a corresponds to, for example, the area image 71a that constitutes the radio wave interference monitor area display area 71 of the basic monitor screen 70 (see FIG. 9), and the grid map image 83b corresponds to the grid map image 71b. It is equivalent. The radio wave situation image 83c is such that the electric field strength of the incoming signal within the radio wave interference monitoring area 6 is displayed by color shading. Here, regarding the electric field strength of the incoming signal, for example, the darker the color, the stronger the electric field strength is.

In this way, the heat map confirmation screen 83 displays the radio wave condition image 83c on the area image 83a that simulates the radio wave interference monitor area 6 where a plurality of measurement points are located, showing the incoming signal within the radio wave interference monitor area 6. The distribution of electric field strength can be displayed using color shading. The structural difference between the heat map confirmation screen 83 and the basic monitor screen 70 is that the former has a function of displaying electric field strength (radio wave status image 83c), and the latter does not have a function of displaying electric field strength. . The heat map is not limited to being displayed using the heat map confirmation screen 83, but may be displayed together with other radio wave interference information using a multi-window.

In addition, in response to the selection of the analysis item "constellation" in step S55 of FIG. 8, the display control unit 61 displays a constellation confirmation screen 84 shown in FIG. 13 on the basic monitor screen 70 in step S56. to visualize the constellation.

As shown in FIG. 13, the constellation confirmation screen 84 has a graph display area 84a, in which analysis results regarding the constellation of the incoming signal arriving at the measurement point are displayed. ing.

By the way, the basic monitor screen 70 shown in FIG. 9, the sweep spectrum confirmation screen 82, the heat map confirmation screen, and the constellation confirmation screen 84 shown in FIGS. Measurement data such as the analysis result data of each item and the interference source position estimation result are stored until the measurement is completed, and after the measurement in the entire radio wave interference monitor area 6 is completed, the radio wave imitating the radio wave interference monitor area 6 is stored. The embodiment is exemplified on the premise that the entire area of the interference monitor area display area 71 is displayed at once, and then the radio wave interference information is selectively displayed.

Here, in the radio wave interference monitoring device 1 of this embodiment, the self-propelled receiving sensor section 20 is made to travel within the radio wave interference monitoring area 6 by remote control from the data processing device 40 to expand the measurement completion area at any time. It is also possible to adopt a display method in which the display area of the radio wave interference information on the basic monitor screen 70 is expanded as needed as the measurement progresses.

(Modified example)
From the above-mentioned point of view, in the modification according to the present embodiment, in the display control of radio wave interference information, a display method is adopted in which the display area of the radio wave interference information on the basic monitor screen 70 is expanded as needed in accordance with the progress of measurement. This is what was adopted.

FIG. 14 is a diagram showing transitions of heat map confirmation screens 70A, 70B, and 70C in a radio wave interference monitoring device (identified by reference numeral 1A for convenience) according to a modification of the present embodiment. As shown in FIG. 14, in the radio interference monitoring device 1A according to the modification, the display control unit 61 displays heat map confirmation screens 70A, 70B, and 70C with different area sizes in accordance with the progress of measurement of the radio interference monitoring area 6. It has a control function to display on the display unit 46.

According to FIG. 14, the time from the start of measurement elapses in the order of time A, time B, and time C, and the display completion area expands as time elapses. If a display processing start operation is accepted at time A, time B, or time C after the start of measurement, the display control unit 61 selects heats with larger areas in order, covering up to the area where measurement has been completed at that time. Map confirmation screens 70A, 70B, and 70C are displayed respectively. To achieve this, for example, in the flowchart shown in FIG. 8, the heat map generation process in step S41 may be moved immediately after step S33.

Although FIG. 14 shows an example of the extended display control of the heat map confirmation screen, the extended display control of other screens, for example, the radio wave interference monitor area display area 71 on the basic monitor screen 70, can be similarly extended as needed. Needless to say, it can be applied.

According to the display control of radio wave interference information such as a heat map of the radio wave interference monitor device 1 according to the modification, as the measurement progresses in the radio wave interference monitor area 6, the display area of the radio wave interference information is changed in accordance with the measurement completed area. In order to update (expand) This provides the effect that the state of radio wave interference can be easily confirmed.

As described above, the radio interference monitoring device 1 according to the present embodiment displays radio interference information within a predetermined space of the radio interference monitoring area 6 where a plurality of signal sources 110 transmit and receive radio signals in the same frequency band. A self-propelled reception sensor section 20 having a self-propelled function section 8, a camera section 9, and an antenna device 10; a remote control section 43a that remotely controls the self-propelled reception sensor section 20; and a remote control section 43a that remotely controls the antenna device. The data processing device 40 includes a data control unit 43b that receives a wireless signal received by the camera unit 10 and image data captured by the camera unit 9, and performs data processing.

In the data processing device 40, the remote control unit 43a drives and controls the self-propelled function unit 8, and causes the self-propelled reception sensor unit 20 to sequentially pass through a plurality of measurement points in a predetermined space or to an arbitrary point. It has a travel control section 54 that causes automatic travel, an antenna control section 52 that causes the antenna device 10 to receive a wireless signal at each measurement point, and an imaging control section 53 that causes the camera section 9 to capture an image. The data control unit 43b receives mixed radio signals transmitted from a plurality of signal sources 110 at each measurement point received by the antenna device 10 from the self-propelled reception sensor unit 20, and selects a plurality of radio signals from the received radio signals. A signal separation process is performed to separate a signal transmitted from any one of the signal sources 110, and electric field strength, direction of arrival estimation, constellation, and sweep are performed for the signal transmitted from each of the signal sources 110 after signal separation. An analysis processing unit 42 that performs analysis processing for each analysis item of the spectrum and the image data captured by the camera unit 9 are received from the self-propelled reception sensor unit 20, and a signal is generated from the received image data based on images registered in advance. An object recognition unit (59) that recognizes an object as an image source 110, and is sent from the self-propelled reception sensor unit 20 when the receiving device automatically travels to the position of the object image-recognized by the object recognition unit. It includes an interference source position estimating unit 60 that estimates the location of the signal source 110 as an interference source in a predetermined space based on azimuth and distance data.

Furthermore, the data processing device 40 has a map area (radio wave interference monitor area display area 71) that defines a predetermined space, and shows that the interference source is located at a location corresponding to the estimated location of the interference source in the map area. The display section 46 displays the basic monitor screen 70 on which the interference source location mark 75 indicating the location of the interference source is displayed, and the analysis results for each analysis item in the analysis processing section 42 are displayed as radio wave interference information in accordance with a predetermined operation in the map area. and a display control section 61 that displays the information on the display section 46.

With this configuration, the radio wave interference monitoring device 1 according to the present embodiment performs remote control from the data processing device 40, and allows the self-propelled reception sensor section 20 to automatically travel through a plurality of measurement points while receiving self-propelled data. The signal transmitted from one of the plurality of signal sources 110 is separated from the mixed radio signals received at each measurement point by the sensor unit 20, and each analysis of the signal transmitted from each of the plurality of signal sources 110 is performed. Since the analysis process is performed for each item, it is possible to significantly reduce the time and effort required for the user to travel and perform measurements, even though the measurement is performed sequentially through multiple measurement points. Further, when an object as a signal source 110 is image-recognized based on images registered in advance from image data captured by the camera unit 9, the self-propelled receiving sensor unit 20 is automatically moved to a position where the object is located. Then, the location of the signal source 110 as an interference source is estimated, and the interference source location mark 75 is displayed at a location corresponding to the estimated location of the interference source in the map area of the basic monitor screen 70. It becomes possible to smoothly monitor the state of radio wave interference, including the location of the interference source.

Furthermore, the radio interference monitoring device 1 according to the present embodiment is configured to register an external image of the IoT wireless unit 105 as the image, and the object recognition unit 59 is configured to image recognize the IoT wireless unit 105 as an object. With this configuration, the radio interference monitoring device 1 according to the present embodiment can easily confirm the location of the IoT radio unit 105, which is the signal source 110, as an interference source using the interference source location mark 75 displayed in the map area. , radio wave interference monitoring can be performed with an eye to the arrangement and operational status of the IoT radio unit 105.

Furthermore, in the radio wave interference monitoring device 1 according to the present embodiment, the camera 9 is a 360-degree camera device. With this configuration, the imaging unit can recognize an object as an interference source (signal source 110) from imaging data in a 360-degree range, and the interference source location mark 75 reduces omission of marking of the interference source location. be able to.

The radio interference monitoring device 1 according to the present embodiment further includes a schedule management unit 55 that manages a movement schedule including a movement route of the self-propelled reception sensor unit 20 and a measurement schedule including measurement intervals, and a travel control unit 54. The antenna control unit 52 is configured to execute automatic travel control of the self-propelled reception sensor unit 20 according to a movement schedule, and the antenna control unit 52 executes a radio signal reception operation at the antenna device 10 according to a measurement schedule.

With this configuration, the radio interference monitoring device 1 according to the present embodiment can easily manage the measurement schedule and movement schedule, and can also easily perform measurement and movement control of the receiving device according to the measurement schedule and movement schedule. Become.

In addition, in the radio interference monitoring device 1 according to the present embodiment, the data processing device 40 records position information at a measurement point within a predetermined space in advance, and each analysis performed by the analysis processing unit 42 at the measurement point. Based on the database 44 that stores the analysis results of items in association with position information and the analysis results of the electric field strength stored in the database 44, interpolation processing of the electric field strength is performed for points other than the measurement points, so that multiple The display control unit 61 further includes a heat map generation unit 57 that generates a heat map corresponding to each of the signal sources 110, and the display control unit 61 displays an interference source location mark 75 at a location in the map area, and also displays an interference source location mark 75 at a location in the map area. In response to an operation for specifying a position, the direction of arrival diagrams 73a and 73b, which are the results of direction of arrival estimation performed by the analysis processing unit 42 corresponding to an arbitrary position, are displayed on the display unit 46 for each of the plurality of signal sources 110. , select either of the arrival direction diagrams 73a or 73b displayed for each of the plurality of signal sources 110, and select either the analysis item or the heat map, and the analysis result for each analysis item corresponding to any desired position is displayed. The heat map generation result is further displayed on the display section 46 as radio wave interference information.

With this configuration, the radio interference monitoring device 1 according to the present embodiment defines a predetermined space when monitoring radio interference in a predetermined space in which a plurality of signal sources 110 transmit and receive radio signals in the same frequency band. By specifying an arbitrary point on the basic monitor screen 70 that has a map area and displays an interference source location mark 75 at a location corresponding to the position of the signal source 110 as an interference source, the interference source can be located. It is possible to selectively and easily check the radio wave interference information for each signal source 110 corresponding to the specified arbitrary position while knowing the location of the signal source 110 . As radio wave interference information, various analysis items such as electric field strength, direction of arrival estimation, constellation, and swept spectrum can be confirmed. Further, according to the configuration having the function of performing the interpolation process, radio wave interference information (heat map) can be confirmed even at points other than the measurement point where the measurement was actually performed. This makes it possible to easily observe complex wireless communication environments that are difficult to implement using existing measuring instruments and measurement systems.

Further, in the radio wave interference monitoring device 1 according to the present embodiment, the display control unit 61 gradually expands the display area of the heat map in response to the expansion of the area including the measurement point where the analysis of each analysis item has been completed. This is the configuration to be updated. With this configuration, it is possible to check the status of the heat map for areas for which measurement has been completed up to that point, without waiting for measurement at all measurement points to be completed.

In the radio interference monitoring device 1 according to the present embodiment, the data processing device 40 further includes a monitor condition setting unit 51 that sets a frequency band to be monitored for radio interference, and the antenna device 10 of the mobile reception sensor unit 20 performs radio signal reception for signals in the frequency band set as described above transmitted from each of the plurality of signal sources 110, and the analysis processing unit 42 receives the antenna device 10 of the mobile reception sensor unit 20. The configuration is such that analysis processing for each analysis item is performed on signals in the frequency bands set as described above received by the receiver.

With this configuration, the radio interference monitoring device 1 according to the present embodiment can easily monitor the state of mutual interference of radio signals in the frequency band by setting a desired frequency band to be monitored for radio interference. Become.

Furthermore, in the radio wave interference monitoring device 1 according to the present embodiment, the setting means has a configuration for setting one of a 3.7 GHz band, a 4.7 GHz band, and a 28 GHz band as the frequency band to be monitored for radio wave interference. are doing. With this configuration, the radio interference monitoring device 1 according to the present embodiment selectively sets one of the frequency bands of 3.7 GHz band, 4.7 GHz band, and 28 GHz band, and transmits wireless signals in the set frequency band. mutual interference status can be monitored.

Furthermore, the radio interference monitoring method according to the present embodiment uses the radio interference monitoring device 1 having any of the configurations described above to provide a radio interference monitoring area in which a plurality of signal sources 110 transmit and receive radio signals in the same frequency band. 6, the radio wave interference monitoring method for displaying radio wave interference information in a predetermined space includes a step (S30) of sending a movement instruction from the data processing device 40 to the self-propelled reception sensor unit 20; and a movement instruction. Each time a measurement is received, a traveling control step (S22) in which the self-propelled reception sensor section 20 automatically travels for one section from the current measurement point to the next measurement point, and a radio signal is received by the antenna device 10 at each measurement point. A reception control step, an imaging control step (S23) in which the camera section 9 captures an image, and a self-propelled reception of mixed wireless signals transmitted from a plurality of signal sources 110 at each measurement point received in the reception control step. Signal separation processing is performed to separate a signal transmitted from one of the plurality of signal sources 110 from the received wireless signal received from the sensor unit 20, and a signal transmitted from each of the plurality of signal sources 110 after signal separation is performed. an analysis processing step (S32) in which analysis processing is performed for each analysis item of electric field strength, direction of arrival estimation, constellation, and sweep spectrum; and an imaging control step in which imaging data is received from the self-propelled reception sensor section 20; An object recognition step (S34) that recognizes an object as a signal source 110 as an image from the image data registered in advance based on an image registered in advance; a position estimation step (S39) of estimating the location of the signal source 110 as an interference source in a predetermined space based on the azimuth and distance data sent from the self-propelled receiving sensor section 20 when the self-propelled vehicle is automatically driven; and a map area (71) defining a predetermined space, and an interference source location mark 75 indicating that the interference source is located at a location corresponding to the estimated location of the interference source in the map area is displayed. A display control step (S43) in which the basic monitor screen 70 is displayed on the display unit 46, and the analysis results for each analysis item in the analysis processing step are displayed on the display unit 46 as radio wave interference information in accordance with a predetermined operation in the map area. ) and .

With this configuration, in the radio wave interference monitoring method according to the present embodiment, in the radio wave interference monitoring device 1 to which the present radio wave interference monitoring method is applied, remote control is performed from the data processing device 40, and the self-propelled reception sensor unit 20 performs a plurality of measurements. While automatically traveling through the points, the self-running receiving sensor section 20 separates the signal transmitted from one of the plurality of signal sources 110 from the mixed radio signals received at each measurement point, and separates the signal transmitted from one of the plurality of signal sources 110, Since analysis processing is performed for each analysis item for the signal transmitted from each signal source 110, although it is assumed that measurements are to be made via multiple measurement points, it does not require much effort for the user to move and perform measurements. can be significantly reduced. Further, when an object as a signal source 110 is image-recognized based on images registered in advance from image data captured by the camera unit 9, the self-propelled receiving sensor unit 20 is automatically moved to a position where the object is located. Then, the location of the signal source 110 as an interference source is estimated, and the interference source location mark 75 is displayed at a location corresponding to the estimated location of the interference source in the map area of the basic monitor screen 70. It becomes possible to smoothly monitor the state of radio wave interference, including the location of the interference source.

As described above, the radio interference monitoring device and the radio interference monitoring method according to the present invention can detect radio signals at various locations in space in a complex radio communication environment in which a plurality of signal sources transmit and receive radio signals in the same frequency band. Although it is assumed that mutual interference is measured via multiple points, it does not require the effort of moving or measuring, and it is possible to monitor the location of the interference source, including the location of the interference source. The present invention is useful for radio wave interference monitoring devices and radio wave interference monitoring methods in general that monitor mutual interference of wireless signals.

1 Radio interference monitoring device 6 Radio interference monitoring area (space)
8 Self-propelled function section (travel mechanism section)
9 Camera section (imaging section)
10 Antenna device (receiving section)
20 Self-propelled receiving sensor section (receiving device)
40 Data processing device 42 Analysis processing section 43 Control section 43a Remote control section 43b Data control section 44 Database 46 Display section 51 Monitor condition setting section (setting means)
52 Antenna control section (reception control section)
53 Imaging control unit 54 Travel control unit 55 Schedule management unit 57 Heat map generation unit 59 Object recognition unit 60 Interference source position estimation unit (position estimation unit)
61 Display control unit 70 Basic monitor screen (monitor screen)
71 Radio interference monitor area display area (map area)
73 Arrival direction diagram for each signal source (arrival direction diagram)
73a, 73b Arrival direction diagram 75 Interference source location mark 105 IoT radio section 110 Signal source

Claims (9)

A radio interference monitoring device that displays radio interference information within a predetermined space (6) in which a plurality of signal sources (110) transmit and receive radio signals in the same frequency band,
a receiving device (20) having a traveling mechanism section (8), an imaging section (9), and a receiving section (10);
a remote control unit (43a) that remotely controls the receiving device; and data that receives a wireless signal received by the receiving unit by the remote control and image data captured by the imaging unit and performs data processing. a data processing device (40) having a control unit (43b);
The data processing device includes:
a traveling control section (54) that drives and controls the traveling mechanism section and causes the receiving device to automatically travel via a plurality of measurement points in the predetermined space or toward an arbitrary point; The remote control unit includes a reception control unit (52) that causes the reception unit to receive the radio signal, and an imaging control unit (53) that causes the imaging unit to capture an image;
A mixed radio signal transmitted from the plurality of signal sources at each of the measurement points received by the receiving unit is received from the receiving device, and from the received radio signal, from any of the plurality of signal sources Performing signal separation processing to separate the transmitted signals, and analyzing each analysis item of electric field strength, direction of arrival estimation, constellation, and swept spectrum for the signals transmitted from each of the plurality of signal sources after signal separation. an analysis processing unit (42) that performs
an object recognition unit (59) that receives imaging data from the imaging unit from the receiving device, and recognizes an object as the signal source from the received imaging data based on an image registered in advance; an interference source of the signal source in the predetermined space based on azimuth and distance data sent from the receiver when the receiver automatically travels to the position of the object image-recognized by the object recognition unit; a position estimating unit (60) that estimates the location of the data controller ;
an interference source location mark (75) having a map area (71) defining the predetermined space and indicating that the interference source is located at a location corresponding to the estimated location of the interference source in the map area; a display unit (46) that displays a monitor screen (70) on which is displayed;
a display control unit (61) that displays an analysis result for each of the analysis items in the analysis processing unit as the radio wave interference information on the display unit in response to a predetermined operation in the map area;
A radio wave interference monitoring device characterized by having the following. Registering an external image of the IoT wireless unit (105) as the image,
The radio wave interference monitoring device according to claim 1, wherein the object recognition unit performs image recognition of the IoT wireless unit as the object. The radio wave interference monitoring device according to claim 1 or 2, wherein the imaging unit is a 360-degree camera device. further comprising a schedule management unit (55) that manages a movement schedule including a movement route of the receiving device and a measurement schedule including measurement intervals;
The travel control unit executes the automatic travel according to the travel schedule,
4. The radio interference monitoring device according to claim 1, wherein the reception control unit executes the reception operation of the wireless signal in the reception unit according to the measurement schedule. The data processing device includes:
A database ( 44 )and,
A heat map that generates a heat map corresponding to each of the plurality of signal sources by performing interpolation processing on the electric field strength at points other than the measurement point based on the analysis result of the electric field strength stored in the database. It further includes a map generation unit (57),
The display control unit displays the interference source location mark at the location in the map area, and displays the interference source location mark in the analysis processing unit corresponding to the arbitrary position in response to an operation for specifying an arbitrary position in the map area. displaying a direction of arrival map (73, 73a, 73b) that is a result of the direction of arrival estimation performed on the display unit for each of the plurality of signal sources;
When one of the direction of arrival maps displayed for each of the plurality of signal sources is selected, and one of the analysis items and the heat map is selected, an analysis for each of the analysis items corresponding to the desired arbitrary position is performed. The radio wave interference monitoring device according to any one of claims 1 to 4, further displaying the result and the generation result of the heat map on the display unit as the radio wave interference information. 6. The display control unit updates the display area of the heat map so as to gradually expand it in response to expansion of a region including the measurement point where the analysis of each analysis item has been completed. The radio interference monitoring device described. The data processing device further includes a setting means (51) for setting a frequency band to be monitored for radio wave interference,
The receiving unit of the receiving device performs the reception on signals in the frequency band set by the setting means, which are transmitted from each of the plurality of signal sources,
Claims 1 to 6, wherein the analysis processing section performs analysis processing for each of the analysis items on a signal in a frequency band set by the setting means, which is received by the receiving section of the receiving device. The radio wave interference monitoring device according to any one of . 8. The radio interference monitoring device according to claim 7, wherein the setting means sets one of a 3.7 GHz band, a 4.7 GHz band, and a 28 GHz band as the frequency band to be monitored for radio interference. Displaying radio interference information within a predetermined space (6) in which a plurality of signal sources (110) transmit and receive radio signals in the same frequency band using the radio interference monitoring device according to any one of claims 1 to 8. A radio wave interference monitoring method comprising:
Sending a movement instruction from the data processing device to the receiving device (S30);
a travel control step (S22) in which the receiving device automatically travels a section from the current measurement point to the next measurement point each time the movement instruction is received;
a reception control step of causing the receiver to receive the radio signal at each of the measurement points;
an imaging control step (S23) in which the imaging unit captures an image;
In the reception control step, mixed radio signals transmitted from the plurality of signal sources at each of the measurement points are received from the receiving device, and from the received radio signals, one of the plurality of signal sources is selected. Perform signal separation processing to separate the signals transmitted from the plurality of signal sources, and analyze each analysis item of electric field strength, direction of arrival estimation, constellation, and swept spectrum for the signals transmitted from each of the plurality of signal sources from which the signals have been separated. an analysis processing step (S32) for performing processing;
an object recognition step (S34) of receiving the imaging data obtained by the imaging control step from the receiving device and recognizing the object as the signal source from the received imaging data based on a pre-registered image;
interference of the signal source in the predetermined space based on azimuth and distance data sent from the receiving device when the receiving device automatically travels to the position of the object image-recognized in the object recognition step; a position estimation step (S39) of estimating the location of the source;
an interference source location mark (75) having a map area (71) defining the predetermined space and indicating that the interference source is located at a location corresponding to the estimated location of the interference source in the map area; A monitor screen (70) on which is displayed is displayed on the display unit (46), and according to a predetermined operation in the map area, the analysis result for each analysis item in the analysis processing step is displayed as the radio wave interference information. a display control step (S43) for displaying on the display unit;
A method for monitoring radio wave interference, comprising:

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